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(-en, -er): Det tidsforløb, der skal tillægges månens lokale kulminationsklokkeslæt for at få højvandets tidspunkt på stedet.
Cotidal hour. An obsolete term for high water full and change i.e. the average high water interval, of new and full moon between the moon's transit over Greenwich meridian and the time of the next high water at the place in question. Also called the establishment of the port.
[DMO, NAV1 p.299, S&M] Kilder |